WT decision and policy makers don't need your letter, they know all about it, and that is why their position stands.
JW confess their sins to the elders for many reasons. The main reason is because of their conscience, self dignity and living with oneself, they do not want live a lie and put on a facade. Being a JW is not a passive thing it involves involvement (sacred service: comments, fs, talks, privileges.association...) Imagine doing all of that with secret sins. I suppose some people can do it but it ain't easy. A lot of JW just confess, they know it will result in df or reproof - both disgraceful so little is the difference, but they know the rules apply to all including the gb and they also knew at the time they decided to sin that there was a price to pay. Some JW confess because they want help whatever that help is and they trust that the brotherhood would never betray them and are willing to pay the price: DF reproof -whatever, they tell those in authority and then it is out of their hands, the elders tell them what they need to do and in a couple of months they are back in business with full backing and support from the org. Some family members can really make it hard (harsh) on other family members if they choose when df happens. It is very expensive in a person's spiritual career to commit a gross sin repentant or not, the rules are for everybody..
And when one holds office it is disastrous and very difficult to confess because of the humiliation -they get caught sooner or later -oh the shame- but some rank are very courageous and confess -oh the shame- but you feel better about yourself and later or else when they get caught they will remember they said a prayer with a gross sin and other will remember tooo, it is easier to confess if one is a low pub.
To me it is about being right with God. He knows our weaknesses and he still gives us his Holy Spirit. BUt if a person has a poblem with porn or sex or something -he cannot serve, lay low and just try to do the best you can. IT aint about how people view you they are sinners too in some way. Everybody is got something. Be honest and true to yourself.